David M. South

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The use of tissue water as a concentration standard in proton magnetic resonance spectroscopy ((1)H-MRS) of the brain requires that the water proton signal be adjusted for relaxation and partial volume effects. While single voxel (1)H-MRS studies have often included measurements of water proton T(1), T(2), and density based on additional (1)H-MRS(More)
A search for events containing isolated electrons or muons and missing transverse momentum has been performed on the complete HERA I ep data set, corresponding to an integrated luminosity of 104.7 pb−1. The main Standard Model process expected to contribute to such events is the production of real W bosons with subsequent leptonic decay, with a small(More)
A comprehensive physics programme is employed by the H1 and ZEUS experiments at the HERA ep collider. Together with measuring the structure of the proton, the deep inelastic collisions (DIS) produced at HERA, at a centre of mass up to 318 GeV, provide an ideal environment to study rare processes, set constraints on the Standard Model (SM) and search for new(More)
The physics goals of the next Large Hadron Collider run include high precision tests of the Standard Model and searches for new physics. These goals require detailed comparison of data with computational models simulating the expected data behavior. To highlight the role which modeling and simulation plays in future scientific discovery, we report on use(More)
The search for events containing isolated leptons (electrons or muons) and missing transverse momentum produced in ep collisions is performed individually and in a common phase space with the H1 and ZEUS detectors at HERA in the period 1994–2007. The presented H1+ZEUS data sample corresponds to an integrated luminosity of 0.97 fb, and comprises the complete(More)
Measurements of the production of events containing isolated high energy leptons (electrons and muons) produced in ep collisions have been performed with the H1 and ZEUS detectors at HERA, using data collected in the period 1994− 2007. Topologies with more than one charged lepton or with a charged lepton in coincidence with missing transverse momentum are(More)
The study group on data preservation in high energy physics, DPHEP, is moving to a new collaboration structure, which will focus on the implementation of preservation projects, such as those described in the group's large scale report published in 2012. One such project is the development of a validation framework, which checks the compatibility of evolving(More)
Recent results of searches for leptoquarks, lepton flavour violating leptoquarks and excited fermions (electrons, neutrinos and quarks) with the H1 experiment at HERA are presented, which use up to the full ep H1 data set. No evidence for the direct or indirect production of such particles is found. The results are interpreted in terms of limits on the(More)